(i) The data essential pursuant to this area must be retained for 2 several years and designed immediately available to the director or commissioner on ask for.B??c three: Ti?p theo b?n ch?n cài ??t quy?n riêng t? c?ng nh? m?t kh?u ??trên c?a s??hi?n th??.(2) The operator on the assets to generally be treated shall be issued an operator identifi